Piston-rod connection.



PATENTED JAN. 1, 1907t L. ANDERSON. PISTON ROD CONNECTION. APPLIUATION FILED 111111.14, 1904.A

z SHEETS-SHEET 1.

NO. 840,190. PATENTED JAN. l, 1907.

L. ANDERSON. VPISTON NOD CONNECTION.

APPLIOATION FILED MAN.14,19O4.

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on the inner faces of. the fly-wheels and held crank-shaft;

STATES PATENT .LARS ANDERSON, OE CHICAGO, ILLINOIS,` ASSIGNOR OE ONEHELF To 1 GEORGE w. STAHL, OF CHICAGO, ILLINOIS; AND ONE-'HALE' To TRIPLEX GAS ENGINE COMPANY, OF N EW YORK, N. Y., A. CORPORAf i TION OE NEW JERSEY.

PlsroN-BOD coNnEcTmN.

To a/ZZ whom it mag/concern:

Be it known Athat I, LABS- ANDEB'SON, a; at Chi- E cago, 1n the'county of Cook and tate of; Illinois, have invented certain new and useful Improvements in Piston-Rod Connections for Engines, of which the following is a full, clear, and exact specification.

My invention relates to means for connectlng the piston-rod of'an engine to its One ofthe objects of my invention is to provide simple and efficient means for tight- 'the piston-rod totake up wear on the cra and for connecting the crank and rod to other.

vith these 'ends' in view my invention consists in certain features of novelty in the construction, combination, and arrangement of parts b which` the said objects and certain other o 'ects hereinafter appea Wheel 14, which constitutes a are attained, a as. fully described Vwit reference to theaccompanying dra s and more particularly pointed out in the c aims.

In e said drawingsI Figure 1 is a vertical longitudinal sectional view of a gasolene or explosion engine of the double-opposed cylinder type provIded with m improvements. Fig. 2 1s a cross-section o the engine on the line 4 4, Illig. 1. 3 is an enlarged detail section on the line 5 5, g. 6; and 4 is a cross-section on the line 6 6, Fig. 3.

The crank-sh ft is preferably made in twoparts 11 12, journaledin Suitable bearings 13 in the sides of the casing 3, and to each of these parts 11 12 is keyed a disk or fiy part of the crank, the pin of which is constltuted by a separate member or pin 15, reduced ends 16, passing through bosses 17, formed.

in placein said bosses b outside nuts'18. Any number of piston-ro s and pistons may be employed in'connection with my im rovements; but in this exempliication of t e invention I have shown two, and each of these is formed at its end adjacent to the crankpin 15 with a section of a box 19, extending varound the crank-pin yand each being less than half of a circle, so that while the boxes 19 are bearing against the crank-pin they eminenti@ einem raamt. 'Y Appia-unnatural 14,-1 ao4 snm lq. 197.919.

' may oscillate with reference to veach other Patented Jan. 1, 1907.

as the crank-pin revolves. These box memb ers 19 arein the form of an arc in cross-Section; but 1n lo 'tudinal sectionV they are conical or tapere at both ends,'as shownin Figs. 4 and 5, and inserted over both endsof kboth of them are two collars 20 21, one of which is show'n in detail in Figs.V 5-and 6, but which are the same in` construction and operation, and hence a description of one will suffice for both. One end of each of these collars, it 'will be seen, has a laringor confines the box members 19 on the crank.

pinr15, and byscrewing said collars 20 21 toward veach other, it wlll be seen, any lost motion resulting from wear between the crank-pin and box members may be readily 'taken up. The collars 20 21 may be rotated for this purpose by a suitable wrench inserted in wrench-sockets 234 or by an other suitable means, and they may be eld to their adjustment by stops A or locks 24,

adapted to enter any one of a series of perforations or sockets'25 in the end of the collar. In order that the stop or lock 24 may be. disengaged at Will, 1t is slidably mounted in a recess 26 inthe Yfly-Wheel and is provided with a thumb-piece 27, projecting outwardly therefrom over the collar.

'The lock or stop is pressed normally toward the collar by a suitable spring 28, arranged in a socket 29 in hub 30 of the iiy-wheel on a reduced stem 31'.

Having thus described mv invention, what I claim as new therein, and desire to s'ecure by Letters Patent, is-'- v 1. The combination of a iston-rod ha a segmental box member t ereon at one en thereof, a crank-pin against which said member bears, a boss surrounding said pm, a re'- taining-collar carried by said boss and encompassing said crank-pin vand the end of said box member, said collar and member having cooperating inclined Surfaces where they contact with each other, means for adjusting said collar alonls'auid member to take up wear, means for loc said collar in ad- IOO justed position, a crank-shaft, and connec tions between said collar and pin and said shaft.

2. The combination of apiston-rod, provided with a segmental box member thereon having conical ends, a crank-pin against which said member bears, collars embracing said crankin and member, means for'adjusting said? ber, a crank-shaft, and means for connecting said collars and pin with said crankshaft.

3. The combination with a piston-rod, provided with a segmental box member thereon, a crank-pin, means for tightening said box member against said pin comprislng an adjustable collar, a detachable lock for holding said collar u to its adjustment, said lock being provide with a projection whereby the Y lock may be disengaged, a crank-shaft and ymeans for connecting said pin to said shaft. 4. The combination of a-piston-rod, provided with a segmental 'box member thereon, a crank-pin'against Which said member bears, means for tightening said member against said crank-pin comprisin an adjustable collar, a lock for holding said collar up to its adjustment, a spring for pressing said'lock into engagement, said lock being provided with a thumb-piece projecting over said collar whereby the lock may be disengaged, a crank-shaft, and meansfor connecting said shaft to said pin.

5. The combination of a piston-rod, pro-4 vided=with a segmental box member thereon,

collars relatively to said mem-v a crank-shaft, al revoluble member secured to 3 5 said shaft and constituting the arm-of the crank, a threaded boss formed o n said revoluble member, a crank-pin projectlng from said threaded boss and against Which pin v said segmental member bears, and means for tightening said segmental member on'said pin comprising a collar embracing said segmental member and threaded on said boss. 6. The combination of a piston-rod, provided with a segmental box member thereon havingconical ends, a tWo-partcrank-shaft, two ily-Wheels secured to the parts of said crank-shaft respectively and having threaded bosses on their opposed faces, a crank-pin having its ends secured in said bosses and connecting said ily-Wheels together, and collars threaded on said bosses and embracing said segmental member.

7 The combination of a piston-rod, provided With a segmental box member thereon,

a crank-pin against which said member bears, 

